refactor: split app context and user context (#48)

* refactor: split app context and user context

* tests: fix api tests

* chore: rename dockerfiles

* fix: use correct forwardauth address

site/src/schemas/app-context-schema.ts

@@ -0,0 +1,10 @@
+import { z } from "zod";
+
+export const appContextSchema = z.object({
+  configuredProviders: z.array(z.string()),
+  disableContinue: z.boolean(),
+  title: z.string(),
+  genericName: z.string(),
+});
+
+export type AppContextSchemaType = z.infer<typeof appContextSchema>;